Corn Sugar (Dextrose)

Corn Sugar (Dextrose)

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Corn Sugar, or dextrose, is used to "prime" your beer to produce natural carbonation in the bottle. "Priming" is the act of adding a small amount of fresh fermentable sugar to the beer just before bottling so that the residual yeast will consume it and produce carbonation in the sealed bottle. We recommend corn sugar for this purpose because it is easy for the yeast to consume and has a neutral flavor profile, meaning it will leave your beer tasting the way you designed it!
Use 4 or 5 oz of corn sugar to prime 5 gallons prior to bottling. Dissolve in 1-1.5 pints of water and boil for 5 minutes to sanitize prior to mixing with your beer.
If your fermentation ended at 68F it will retain about 1 volume of CO2. If it ended at 50F it will retain about 1.2 volumes of CO2. 4 oz in 5 gallons adds 1.48 Volumes of CO2. 5 oz adds 1.84 volumes of CO2 to 5 Gallons.
Suggested CO2 Levels:
  • Cask Ales 1.5 to 2.0
  • Ales 2.3 to 2.6
  • Lagers 2.4 to 2.6
  • Highly Carbonated Beers 3.0+
    • Champagne is 6.3 and requires a special bottle.
To convert from volumes to g/L:
  • multiply volumes x 1.96.
Can also be used to boost your Original Gravity without impacting the beer's flavor profile. Adds 1.042 points per pound per gallon (PPG) to your specific gravity.
  • Dextros Needed (lbs.) = (Actual Volume * (Target Gravity – Actual Gravity)) / 0.042
Community Q&A

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Why did you choose this?
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gotta have it.
Mr John D Williams S on Feb 26, 2021
John K. on Feb 24, 2021
gotta have it.
Mr John D Williams S on Feb 26, 2021
i need it
Paulino T on Feb 24, 2021
John K. on Feb 24, 2021
I need this
Jeff L on Feb 23, 2021
like this one
Damon S on Feb 23, 2021
Used before
I like more carb
michael z on Feb 19, 2021
quick dissolving sugar
Odin A on Feb 16, 2021
Need to bottle said beer
kenneth b on Feb 12, 2021
I bottle in 12oz bottles and it works great in that application
shad r on Feb 12, 2021
Worked well in our first brew
Im almost out
Rene R on Feb 5, 2021
Easier to have this each kit. I like more carbonation
James E on Feb 5, 2021
Bottle hard seltzer.
Kevin M Reeves on Feb 3, 2021
First Brew
Joe C on Feb 2, 2021
i ran out
John J F on Feb 2, 2021
Bottle priming
Patrick W on Feb 2, 2021
Sugar lasts a while, why not buy more than you need for next brew.
Christopher Arndt on Jan 30, 2021
It is inexpensive and always works well for the conditioning. Makes beer with a good head nicely bubbly
Paul Y on Jan 28, 2021
Yeast friends eat this.
Valued C on Jan 27, 2021
First choice for bottling
joseph on Jan 27, 2021
love it
Damon S on Jan 27, 2021
for carbonation
Michael W S on Jan 25, 2021
used before
john b on Jan 25, 2021
I am out.
Vaughn G on Jan 23, 2021
bottle conditioning
Philip A Myers on Jan 23, 2021
Increase ABV
Michael K on Jan 22, 2021
Recommend by recipe
William N on Jan 20, 2021
Recommended for beginning brewing
Eric R on Jan 20, 2021
Shayna K on Jan 19, 2021
Priming when bottling and getting a higher ABV at the finish
Edward C. V on Jan 16, 2021
Always works perfectly
Gary S on Jan 15, 2021
What I used my first batch
Anthony S G on Jan 15, 2021
4 batches of beer carbonation
Sean O on Jan 15, 2021
price was good
Gary S G on Jan 13, 2021
Need me some sugar.
Michael B on Jan 11, 2021
Used to carbonate beer
Michael T H on Jan 8, 2021
used before
Steven E H on Jan 8, 2021
because 5 is better than 4 and I haven't used CO2 tabs before
Charlie S on Jan 6, 2021
For bottling
Vernon B on Jan 5, 2021
For priming beer before bottling
Gary R Day on Jan 5, 2021
Jim G on Jan 5, 2021
Cream Ale adjunct
Jeff L on Dec 30, 2020
to bottle
Andrew B on Dec 30, 2020
Kenneth H on Dec 29, 2020
Stephen E on Dec 29, 2020
Wanted 5 oz to ensure enough for carbonation
Stephen E on Dec 29, 2020
Dave B on Dec 28, 2020
It seemed like the right thing to do.
Jeffrey H on Dec 22, 2020
Need to bottle this batch
John W. Smith on Dec 22, 2020
i need it
Paulino T on Feb 24, 2021
I need this
Jeff L on Feb 23, 2021

4.9 / 5.0
38 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Use sometimes for bumping ABV, but mostly for bottle conditioning.
February 15, 2021
1 month ago
Rated 5 out of 5
Corn Sugar
Big waste of my time for asking for 20 letters. I will not do future ratings due to this!
February 2, 2021
1 month ago
Rated 5 out of 5
Good choice
I chose this based on website options available. Worked well and easy to dissolve.
January 24, 2021
1 month ago
Rated 5 out of 5
Great product at a very affordable price!
December 21, 2020
2 months ago
Rated 5 out of 5
corn sugar
the corn sugar is very easy to use. It dissolves fast and completely.
October 27, 2020
4 months ago
Rated 5 out of 5
It's sugar, let's not get excited
Hooray for adjuncts.
October 2, 2020
5 months ago
Rated 4 out of 5
It was corn sugar
The bag intact and it arrived as scheduled.
September 16, 2020
5 months ago
Rated 5 out of 5
needed item
I need this for bottling, but decided to keg
September 2, 2020
6 months ago
Rated 5 out of 5
Have been getting consistent carbonated results
August 25, 2020
6 months ago
Rated 5 out of 5
Prime sugar!
???? perfect for bottle conditioning
August 20, 2020
6 months ago